CN115015575B - Autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly - Google Patents
Autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly Download PDFInfo
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- CN115015575B CN115015575B CN202210669133.2A CN202210669133A CN115015575B CN 115015575 B CN115015575 B CN 115015575B CN 202210669133 A CN202210669133 A CN 202210669133A CN 115015575 B CN115015575 B CN 115015575B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/08—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring variation of an electric variable directly affected by the flow, e.g. by using dynamo-electric effect
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Abstract
The invention discloses an autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly. It comprises a main body cabin module, a rotary wing module and a treatment cabin module. The main body cabin module is provided with a water inlet, a power water outlet, a micro water pump and a friction electro-generating material film layer, wherein the water inlet, the power water outlet and the micro water pump are used for pushing the device to move, and the friction electro-generating material film layer is used for generating a friction electric signal. The rotary wing modules are provided with fins and annular teeth that promote rotational friction. The processing cabin module comprises a power layer, an energy storage layer and a signal layer. The membrane shell material manufactured by the triboelectric effect quickly acquires an electric signal generated by water flow, so that the underwater flow velocity is monitored; the kinetic energy of the monitored flow field is converted into electric energy required for maintaining the self-operation, and the autonomous energy supply is realized; the effect of monitoring free movement in a large range is realized by utilizing the reverse thrust effect generated when the central chip controls the drainage of the power water outlet. The invention can effectively solve the problems of the traditional underwater monitoring equipment in monitoring range and energy continuous supply.
Description
Technical Field
The invention belongs to the technical field of underwater monitoring, and particularly relates to an autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly.
Background
The development of underwater monitoring is of great significance to actual production and engineering practice, for example, 24-hour all-weather continuous monitoring is required to be carried out around the bridge piers of the sea-crossing bridge to ensure the engineering safety of the bridge piers. However, the existing underwater monitoring device and technology can only realize single-point monitoring basically, and the monitoring range is small. When the large-scale monitoring needs to be carried out in a target flow domain, a sufficient number of monitoring instruments are often required to be arranged in the target water domain, but the monitoring instruments also bring great challenges to the recovery of the instruments after the monitoring is finished.
In addition, the underwater monitoring equipment is often required to perform long-term latent monitoring, the traditional underwater monitoring equipment is basically powered by a battery, is limited by size and weight and can only carry a small-capacity battery, so that the endurance cycle of the underwater monitoring equipment is short, and when the electric quantity of the battery is exhausted, the underwater monitoring equipment needs to be recycled or the battery needs to be replaced as soon as possible, which brings great trouble to continuous monitoring. Therefore, the monitoring range and the energy are influence factors for limiting the long-term stable operation of the underwater monitoring system, and the problem becomes a key technical problem to be solved urgently in the technical field of underwater monitoring.
The triboelectric effect is a physical phenomenon that static induction is generated and current is output outwards based on contact friction of two materials, and can convert low-frequency friction motion into high-frequency electric signals. The triboelectric membrane shell material manufactured by the effect can convert micro mechanical energy into electric energy, directly obtains energy in a water body environment to supply power to an electronic device, and simultaneously inverts the obtained electric signal into the characteristic of corresponding mechanical motion by virtue of an electronic chip. At present, the triboelectric effect has been applied to the fields of research of triboelectric nano-generators, sensors and the like.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a technical scheme of an autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly.
The invention comprises a main body cabin module, a rotary wing module and a treatment cabin module.
The main body cabin module comprises a pressure-resistant shell, a power water outlet, a water inlet, a friction charge material film layer, a micro water pump, a conductive belt and a drainage branch port, wherein the power water outlet is used for pushing the device to move; the water inlet is arranged at the front end of the pressure-resistant shell, the micro water pump is connected with the water inlet and the drainage branch port through an internal pipeline, and the power water outlet is directly connected with the drainage branch port.
The rotary wing module comprises fins for promoting rotation, a stainless steel shell and annular teeth; the fins drive the stainless steel shell to rotate, and further drive the annular teeth to rotate; the friction charge material film layer is in direct contact with the annular teeth, and when the annular teeth rotate, the friction charge material film layer generates friction, and then an electric signal is generated.
The processing cabin module comprises a power layer, an energy storage layer and a signal layer; the power layer comprises a power control chip, the energy storage layer comprises an energy storage battery pack, and the signal layer comprises an electric signal analysis chip; the electric signal analysis chip is connected with the friction charge material film layer through the conductive belt, and is used for collecting and analyzing the generated electric signal so as to invert the water body flow speed corresponding to the electric signal.
When the underwater flow velocity monitoring device is used for monitoring underwater flow velocity, kinetic energy of a monitoring flow field can be converted into electric energy required for maintaining self operation, and autonomous energy supply is realized. In addition, the invention can also move freely by utilizing the reverse thrust effect generated when the self power water outlet discharges water quickly, thereby realizing the effect of monitoring multipoint movement in the area. Compared with the existing underwater monitoring technology, the underwater monitoring system can realize large-range and long-period underwater monitoring.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a three-view illustration of the present invention;
FIG. 3 is a schematic view of the main body pod and the rotor of the present invention;
FIG. 4 is a cross-sectional view of the present invention;
FIG. 5 is a schematic view of the layers of the treatment chamber of the present invention;
in the figure: 101-a pressure resistant housing; 102-a fin; 103. 104, 105, 106-power water outlet; 107-water inlet; 108-a triboelectric charge generating material film layer; 109-stainless steel housing; 110-ring teeth; 201-a miniature water pump; 202-a processing cabin; 203-conductive band; 204-water drainage branch port; 301-a power control chip; 302. 303-a wire; 304-an energy storage battery pack; 305-an electric signal analysis chip; 306-flat cable; 307-signal transmitting means; 308-electric energy harvesting device.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The invention provides a movable self-powered underwater flow velocity monitoring device, which is characterized in that a membrane shell material manufactured by utilizing a triboelectric effect is used for quickly acquiring an electric signal generated by the flow of a water body, so that the underwater flow velocity is monitored; kinetic energy of the monitoring flow field is collected for use, and autonomous energy supply is realized; the central chip is used for controlling the drainage propulsion of the power water outlet, so that the effect of large-range movement monitoring is achieved.
As shown in fig. 1, 2 and 3, the autonomous powered underwater flow velocity monitoring device capable of moving flexibly comprises a main body cabin module, a rotating wing module and a processing cabin module. The main body cabin module comprises a pressure-resistant outer shell 101, power water outlets 103, 104, 105 and 106 for pushing the device to move, a water inlet 107, a triboelectric material film layer 108, a micro water pump 201, an electric conduction band 203 and a drainage branch port 204. The rotary wing module comprises fins 102 facilitating rotation, a stainless steel housing 109, annular teeth 110.
As shown in fig. 4 and 5, the treatment cabin module 202 comprises a power layer, an energy storage layer and a signal layer. The power layer comprises a power control chip 301 and a lead, the energy storage layer comprises an energy storage battery pack 304, and the signal layer comprises an electric signal analysis chip 305, a flat cable 306, a signal transmitting device 307 and an electric energy collecting device 308.
As an optimization: the lobed design of the fins 102 is intended to facilitate rotation of the stainless steel housing 109, which in turn rotates the annular teeth 110.
As an optimization: the film layer 108 of the friction charge generating material is in direct contact with the annular tooth 110, and when the annular tooth 110 rotates, the film layer 108 of the friction charge generating material generates friction, and thus generates an electrical signal.
As an optimization: the design of the ring-shaped teeth 110 improves the service life of the triboelectric charging material film 108, and simultaneously fully increases the contact with the triboelectric charging material film 108, and enhances the transmission of electric signals.
As an optimization: the electric signal analysis chip 305 is connected to the triboelectric material film layer 108 through the conductive tape 203, and collects and analyzes the generated electric signal.
As an optimization: the power control chip 304 is connected with the micro water pump through a lead 303, and controls the water inlet speed of the micro water pump 303 and the opening and closing of the water discharge branch port, thereby controlling the movement of the device.
As an optimization: the water inlet 107 is arranged at the front end of the pressure-resistant shell 101, the micro water pump 201 is connected with the water inlet 107 and the drainage branch port 204 through an internal pipeline, and the power water outlet is directly connected with the drainage branch port 204.
As an optimization: different water outlet combination modes of the power water outlet enable the device to generate different steering motions, and therefore flexible movement monitoring of the device is promoted.
The working process of the invention is as follows: in a monitoring water area, the flow of the water body drives the fins to rotate, so that the annular teeth rotate, finally, the annular teeth and the friction charge material film generate rotary friction, and the friction charge material film generates corresponding electric signals under the excitation of friction. And the incoming flow with different speeds will induce the rotation with different speeds, so as to generate the frictional electric signal with different frequencies. After the electric signal analysis chip collects the electric signal through the conductive belt, the electric signal analysis chip comprehensively analyzes information such as frequency, amplitude and the like of the transmitted electric signal so as to invert the water flow speed corresponding to the electric signal. And further, filtering is carried out through an artificial neural network so as to eliminate interference signals outside the monitoring flow field, and the flow speed data is transmitted to the aquatic information base station through a signal transmitting device. Meanwhile, the electric signal is captured by the electric energy collecting device in time and transmitted to the energy storage battery pack so as to enable the device to normally operate.
When the flow rate monitoring is finished, the power control chip controls the micro water pump to start, the water inlet is opened, water is quickly conveyed to the drainage branch port through pressurization of the micro water pump, then the water is quickly discharged from the power water outlet to the surrounding flow field, and the surrounding flow field pushes the device forwards in a reverse mode under interaction. In addition, when turning is needed, the power control chip can automatically control the opening and closing of the gates of the drainage branch ports, so that partial power water outlets are drained, the device is moved in a turning direction, and finally the device is moved flexibly.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the present invention as set forth in the examples.
Claims (6)
1. The utility model provides a can nimble autonomous energy supply formula velocity of flow monitoring devices under water that removes which characterized in that: comprises a main body cabin module, a rotating wing module and a processing cabin module;
the main body cabin module comprises a pressure-resistant shell (101), power water outlets (103, 104, 105 and 106) for pushing the device to move, a water inlet (107), a triboelectric material film layer (108), a micro water pump (201), an electric conduction band (203) and a drainage branch port (204);
the water inlet (107) is arranged at the front end of the pressure-resistant shell (101), the miniature water pump (201) is connected with the water inlet (107) and the drainage branch port (204) through an internal pipeline, and the power water outlets (103, 104, 105 and 106) are directly connected with the drainage branch port (204);
the rotary wing module comprises fins (102) for promoting rotation, a stainless steel shell (109) and annular teeth (110); the fins (102) drive the stainless steel shell (109) to rotate, and further drive the annular teeth (110) to rotate; the friction charge material film layer (108) is in direct contact with the annular tooth (110), and when the annular tooth (110) rotates, the friction charge material film layer (108) generates friction, so that an electric signal is generated;
the processing cabin module (202) comprises a power layer, an energy storage layer and a signal layer; the power layer comprises a power control chip (301), the energy storage layer comprises an energy storage battery pack (304), and the signal layer comprises an electric signal analysis chip (305);
the electric signal analysis chip (305) is connected with the triboelectric material film layer (108) through the conductive belt (203), and acquires and analyzes the generated electric signal, so as to invert the water body flow velocity corresponding to the electric signal.
2. A flexible mobile, autonomously powered underwater flow rate monitoring device as claimed in claim 1, wherein: the fins (102) are lobed in order to facilitate rotation.
3. A flexible mobile, autonomously powered underwater flow rate monitoring device as claimed in claim 1 further comprising: the power control chip (301) is connected with the micro water pump through a lead (303) and controls the water inlet speed of the micro water pump (201) and the opening and closing of the water discharge branch port, so that the movement of the device is controlled.
4. A flexible mobile, autonomously powered underwater flow rate monitoring device as claimed in claim 1 further comprising: different water outlet combination modes of the power water outlets (103, 104, 105 and 106) enable the device to generate different steering motions, and flexible movement of the device is promoted.
5. A flexible mobile, autonomously powered underwater flow rate monitoring device as claimed in claim 1, wherein: the signal layer also comprises a signal transmitting device (307), and the flow speed data is transmitted to the aquatic information base station through the signal transmitting device (307).
6. A mobile autonomous powered underwater flow rate monitoring device as claimed in claim 1, characterized in that said signal layer further comprises a power harvesting device (308), said electrical signal being captured by said power harvesting device and transmitted to said energy storage battery (304) in time for normal operation of the device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210669133.2A CN115015575B (en) | 2022-06-14 | 2022-06-14 | Autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly |
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| CN202210669133.2A CN115015575B (en) | 2022-06-14 | 2022-06-14 | Autonomous energy supply type underwater flow velocity monitoring device capable of moving flexibly |
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| CN115015575A CN115015575A (en) | 2022-09-06 |
| CN115015575B true CN115015575B (en) | 2023-03-28 |
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| US9429588B2 (en) * | 2012-08-16 | 2016-08-30 | Brickhouse Innovations, Llc | Electromagnetic boat speedometer having removable electrodes |
| WO2017118138A1 (en) * | 2016-01-08 | 2017-07-13 | 纳智源科技（唐山）有限责任公司 | Triboeletricity based pneumatic sensor, airflow processing apparatus, and intelligent pneumatic sensor system |
| CN107688100B (en) * | 2017-09-22 | 2019-04-05 | 上海交通大学 | A kind of pipeline stream flow monitoring self-powered sensor based on vortex-induced vibration |
| CN211505608U (en) * | 2020-03-10 | 2020-09-15 | 广东海洋大学 | Friction nanometer power generation type fluid speed measuring device |
| CN112165272A (en) * | 2020-10-12 | 2021-01-01 | 大连海事大学 | Rotary direct-current friction nano generator and flow velocity sensor device |
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